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Hydrogel dressing is a medical dressing based on hydrogels, three-dimensional hydrophilic structure. [1] The insoluble hydrophilic structures absorb polar wound exudates and allow oxygen diffusion at the wound bed to accelerate healing. [2]
Alginate dressings can be in the form of freeze-dried, porous (foam) sheets or flexible fibres. Flexible fibres are used to treat cavity wounds. The alginate will form a gel in contact with the exudates of the wound and give it a strong absorbent power. [2] There is no evidence of superior effectiveness in those with diabetic foot ulcers. [3]
Gauze dressing is made up of woven or non-woven fibres of cotton, rayon, and polyester. Gauze dressing are capable of absorbing discharge from wound but requires frequent changing. Excessive wound discharge would cause the gauze to adhere to the wound, thus causes pain when trying to remove the gauze from the wound.
The gel may be designed to drain, or to remain within the structure of the adhesive matrix. [4] The moist conditions produced under the dressing are intended to promote fibrinolysis, angiogenesis and wound healing, without causing softening and breaking down of tissue. The gel which is formed as a result of the absorption of wound exudate is ...
These dressings are generally made with a waxy coating so as to provide a total seal, and as a result do not have the absorbent properties of gauze pads. They are typically used to treat open, or "sucking," chest wounds ( open pneumothorax ) to prevent a tension pneumothorax (a serious complication of a simple pneumothorax).
An Unna’s boot [1] (also Unna boot) is a special gauze (usually 4 inches wide and 10 yards long) bandage, which can be used for the treatment of venous stasis ulcers and other venous insufficiencies of the leg. It can also be used as a supportive bandage for sprains and strains of the foot, ankle and lower leg.
Traumagel is an algae-derived gel that comes in a pre-filled syringe and requires no manual pressure on the wound to create a blood clot, according to the company.
Once applied directly to a recently cleaned wound it has the ability to absorb some moisture or blood from the wound. [4] As the iodine is used up, the dressing loses colour and becomes white. [5] It is typically held in place using gauze and then bandage material. [6]
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